Lifetimes of charmed particles produced in a 20-GeV p experiment

K. Abe, T. C. Bacon, J. Ballam, L. Berny, A. V. Bevan, H. H. Bingham, J. E. Brau, D. Brick, W. M. Bugg, J. Butler, W. Cameron, J. T. Carroll, C. V. Cautis, J. S. Chima, H. O. Cohn, D. C. Colley, G. T. Condo, S. Dado, R. Diamond, P. J. DornanR. Erickson, T. Fieguth, R. C. Field, L. Fortney, B. Franek, N. Fujiwara, R. Gearhart, J. Goldberg, G. P. Gopal, A. T. Goshaw, E. S. Hafen, V. Hagopian, G. Hall, E. R. Hancock, T. Handler, H. J. Hargis, E. L. Hart, P. Haridas, K. Hasegawa, T. Hayashino, D. Q. Huang, R. I. Hulsizer, S. Isaacson, M. Jobes, G. E. Kalmus, D. P. Kelsey, J. Kent, T. Kitagaki, P. Lang, J. Lannutti, A. Levy, P. W. Lucas, W. A. Mann, T. Maruyama, M. MacDermott, R. Merenyi, R. Milburn, C. Milstene, K. C. Moffeit, J. J. Murray, A. Napier, S. Noguchi, F. Ochiai, S. O'Neale, A. P.T. Palounek, I. A. Pless, M. Rabin, P. Rankin, W. J. Robertson, A. H. Rogers, E. Ronat, H. Rudnicka, T. Sato, J. Schneps, J. Shank, A. M. Shapiro, C. Sinclair, R. Sugahara, A. Suzuki, K. Takahashi, K. Tamai, S. Tanaka, S. Tether, H. B. Wald, W. D. Walker, M. Widgoff, C. G. Wilkins, S. Wolbers, C. A. Woods, Y. Wu, A. Yamaguchi, R. K. Yamamoto, S. Yamashita, G. Yekutieli, Y. Yoshimura, G. P. Yost, H. Yuta

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Eleven neutral and nine charged decays of charmed particles have been observed in a sample of 205 000 hadronic interactions in a 1.2-million-picture exposure of the SLAC Hybrid Facility bubble chamber to a 20-GeV/c backward-scattered laser beam. The charged and neutral lifetimes were determined to be 8.2-2.5+4.5×10-13 and 6.7-2.0+3.5×10-13 sec, respectively, with a ratio of 1.2-0.50.9.

Original languageEnglish (US)
Pages (from-to)1526-1529
Number of pages4
JournalPhysical Review Letters
Issue number22
StatePublished - 1982
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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